well i went up to santa pod on wednesday with 23 other cars from around the uk to brake a world record loudest earthquake from car audio the total rms of the cars was 200'000 wrms.
we got 5.6 on the richter scale.
and the equivalent of 300kg of high explosive being detonated at 1/2 a mile... (I guess it's hard to measure detonations up close
)
we had itv news and fast car there
http://www.talkaudio.co.uk/video/santapod08.mpg
